https://gcc.gnu.org/bugzilla/show_bug.cgi?id=105747
--- Comment #6 from David Binderman <dcb314 at hotmail dot com> --- Here are the results from -ftime-report, with the 0.0% lines removed: Time variable usr sys wall GGC phase opt and generate : 199.90 (100%) 0.92 ( 87%) 206.57 (100%) 581M ( 99%) callgraph functions expansion : 193.45 ( 97%) 0.81 ( 76%) 199.89 ( 97%) 568M ( 96%) callgraph ipa passes : 6.32 ( 3%) 0.10 ( 9%) 6.53 ( 3%) 5915k ( 1%) CSE : 1.18 ( 1%) 0.01 ( 1%) 1.22 ( 1%) 3346k ( 1%) dead store elim2 : 2.62 ( 1%) 0.07 ( 7%) 2.75 ( 1%) 85M ( 14%) PRE : 14.61 ( 7%) 0.35 ( 33%) 15.48 ( 7%) 385M ( 65%) scheduling : 142.72 ( 71%) 0.12 ( 11%) 146.64 ( 71%) 5015k ( 1%) integrated RA : 1.08 ( 1%) 0.02 ( 2%) 1.15 ( 1%) 26M ( 4%) TOTAL : 200.06 1.06 206.91 589M